High Quality Content by WIKIPEDIA articles! Qiangduan was the leader of a ethnic minority tribe in Yinping during the late Han Dynasty period of Chinese history. Qiangduan cut off the head of Wu Lan, a general sent by the warlord Liu Bei to capture the city of Hanzhong, but instead defeated Cao Hong. Qiangduan ended up sending the head of Wu Lan to Cao Cao following this event.